Draper 58157 Manuale di istruzioni - Pagina 8

Sfoglia online o scarica il pdf Manuale di istruzioni per Utensile elettrico Draper 58157. Draper 58157 12. 10 tonne hydraulic bench press

TROUBLE SHOOTING

TROUBLE

Pump unit will not work.

Pump unit will not produce

pressure

Pump unit feels unsteady

under load.

Pump unit will not lower

completely.

Pump unit will not produce

pressure

Pump unit feels unsteady

under load

Pump unit will not lower

completely

PROBABLE CAUSE

Dirt on valve seats/worn seals.

Air block

The reservoir could be

overfilled or low on

hydraulic oil level

The pump cup seal could

be worn out

Air block

- 8 -

REMEDY

Replace with new seals.

(1) Open the release valve

and remove oil filler plug.

(2) Pump handle a couple of full

strokes and close the release

valve.

(3) Replace filler plug.

To check the oil level – remove

the filler plug. Top up oil to

correct level.

Replace the cup seal with a

new one.

Release air by removing filler

plug.